For the detection and semi-quantitation of IgG antibodies to Coxiella burnetii, the etiologic agent of Q fever in human serum. Slide wells have individual spots of C. burnetii phase I and C. burnetii phase II in each well.

For the detection and semi-quantitation of IgM antibodies to Coxiella burnetii, the etiologic agent of Q fever in human serum. Slide wells have individual spots of C. burnetii phase I and C. burnetii phase II in each well.

For the detection and semi-quantitation of IgG antibodies to R. rickettsii, the etiologic agent of Rocky Mountain spotted fever, and to R. typhi, the etiologic agent of murine typhus, in human serum. Slide wells have individual spots of R. typhi and R. rickettsii in each well.

For the detection and semi-quantitation of IgM antibodies to R. rickettsii, the etiologic agent of Rocky Mountain spotted fever, and to R. typhi, the etiologic agent of murine typhus, in human serum. Slide wells have individual spots of R. typhi and R. rickettsii in each well.